What we really saw was Ballmer trying a pre-emptive strike against the probable appearance of an Apple tablet later this month. He even referred to 'slate' PCs, a bit of a swipe against the oft-reported Apple-owned iSlate name. I suppose this is better than Ballmer's 2007 interview where he dissed the iPhone when it launched. He's trying to get ahead of the curve, but his keynote got pretty ho-hum reviews and Microsoft really didn't show anything of interest. There was a buzz that Microsoft might show the Courier device it hinted at in September, but it didn't appear yesterday.
We don't know if Apple will reveal a tablet, although it seems pretty likely. Do you think Apple can trump Microsoft with a tablet and dominate the market as they have with the iPhone against Windows Mobile phones? Or has Microsoft learned their lessons by trying to be a little more pre-emptive with a tablet release?